B29C 45/64
Mould opening, closing or clamping devices
Official title: Mould opening, closing or clamping devices {(combined with means for plasticising or homogenising B29C45/70)}
B29C45/64 (Mould opening, closing or clamping devices) appears on 781 US grants and 633 published applications in this corpus.
Search patents in B29C- Granted patents
- 781
- Published applications
- 633
- Assignees
- 343
- Inventors
- 1,289
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 17 | 0 |
| 1978 | 6 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 6 | 0 |
| 1982 | 6 | 0 |
| 1983 | 5 | 0 |
| 1984 | 1 | 0 |
| 1985 | 5 | 0 |
| 1986 | 9 | 0 |
| 1987 | 7 | 0 |
| 1988 | 10 | 0 |
| 1989 | 16 | 0 |
| 1990 | 14 | 0 |
| 1991 | 15 | 0 |
| 1992 | 15 | 0 |
| 1993 | 21 | 0 |
| 1994 | 24 | 0 |
| 1995 | 12 | 0 |
| 1996 | 13 | 0 |
| 1997 | 12 | 0 |
| 1998 | 17 | 0 |
| 1999 | 13 | 0 |
| 2000 | 14 | 0 |
| 2001 | 23 | 5 |
| 2002 | 19 | 28 |
| 2003 | 25 | 41 |
| 2004 | 31 | 37 |
| 2005 | 23 | 24 |
| 2006 | 22 | 20 |
| 2007 | 19 | 27 |
| 2008 | 19 | 22 |
| 2009 | 15 | 11 |
| 2010 | 13 | 13 |
| 2011 | 9 | 13 |
| 2012 | 7 | 15 |
| 2013 | 13 | 22 |
| 2014 | 18 | 25 |
| 2015 | 19 | 24 |
| 2016 | 23 | 23 |
| 2017 | 16 | 32 |
| 2018 | 18 | 26 |
| 2019 | 16 | 29 |
| 2020 | 22 | 21 |
| 2021 | 30 | 36 |
| 2022 | 21 | 34 |
| 2023 | 19 | 28 |
| 2024 | 25 | 28 |
| 2025 | 28 | 24 |
| 2026 | 15 | 25 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B29C 45/67Hydraulic324
- B29C 45/66Mechanical297
- B29C 45/68Hydro-mechanical136
- B29C 45/641Clamping devices using means for straddling or interconnecting the mould halves46
- B29C 2045/645Using magnetic meansIndexing code19
- B29C 2045/648Rack and pinion means for mould opening and closing a pair ofIndexing code11
- B29C 2045/644Mould clamping by nozzle touch pressureIndexing code1
Recent patents
- Housing and method for manufacturing the same1 Sep 2026US 12,722,333 B2Lite-On Technology Corporation
- Injection molding device11 Aug 2026US 12,703,135 B2Seiko Epson Corporation
- Hydraulic circuit for opening and closing mould of injection moulding machine, and injection moulding machine system28 Jul 2026US 12,691,622 B2Danfoss A/S
- Injection molding method and injection molding machine23 Jun 2026US 12,661,837 B2Nissei Plastic Industrial Co., Ltd.
- Mold clamping device and injection molding machine19 May 2026US 12,629,873 B2The Japan Steel Works, Ltd.
- Injection molding device and mold opening and closing device17 Sep 2026US 2026/0273822 A1Seiko Epson Corporation
- Magnetic clamping device20 Aug 2026US 2026/0241625 A1Kosmek Ltd.
- System for operating clamp axis of an injection molding machine and method thereof13 Aug 2026US 2026/0234909 A1
- Mold clamping device and mold clamping method30 Jul 2026US 2026/0216934 A1The Japan Steel Works, Ltd.
- Injection molding apparatus30 Jul 2026US 2026/0216935 A1Seiko Epson Corporation
Most cited
By later US patents
- Closed-system electrohydraulic actuator93US 7,051,526 B2Moog Inc. · 2006
- Injection molding machines having a brushless DC drive system82US 4,988,273 ACincinnati Milacron Inc. · 1991
- Compact hydraulic drive for die closing unit of injection molding machine46US 4,380,427 A1983
- Die clamping apparatus43US 4,874,309 AMitsubishi Jukogyo Kabushiki Kaisha · 1989
- Hydraulic system for the mold clamping unit of a plastics injection molding machine40US 4,846,664 A1989